Each of the following physical quantities is classified as a vector or a scalar quantity. Which of the classifications is correct?

A scalar quantity is a physical quantity that has only magnitude (size) and no direction, while a vector quantity has both magnitude and direction. Electric potential is a scalar quantity, meaning it only has a magnitude or value, and doesn't have a direction associated with it. It describes the electric potential energy per unit charge at a point in space. Momentum is a vector quantity, meaning it has both magnitude and direction. Momentum is the product of an object's mass and velocity, and its direction is the same as its velocity. Gravitational field intensity is a vector quantity, meaning it has both magnitude and direction. It is a measure of the force experienced by a unit mass in a gravitational field, and its direction is towards the center of mass of the object causing the field. Magnetic flux density is also a vector quantity, meaning it has both magnitude and direction. It describes the strength and direction of a magnetic field, and is usually denoted by the symbol B. In summary, electric potential is a scalar quantity, momentum is a vector quantity, gravitational field intensity is a vector quantity, and magnetic flux density is a vector quantity.